Equestrian economics. Unlike say football, horse riding is not the cheapest of leisure activities. For high level competitive polo, each player needs at least four mounts and so to last the full chukkas, a polo match will involve over 40 horses! The question for WHAT_architecture was then how could one deploy an economically rational structure with a high level of articulation and differentiation so as not to be a ‘dumb shed’, an equestrian warehouse… a warehorse? The proposal includes just three types of steel portal frame (as can be seen in the ‘strip-tease’ animation) and includes a ‘showjump’ entry.